Excel 2007 - cannot create an outline

[6538]

When trying to group and outline when selecting Group > Outline - I get an
error message that cannot create an outline. How do I create an outline or
get past this error message?

Thanks

 

[Roger Govier]

Hi

Having selected your Grouping, by Rows or Columns, then select Subtotal
to get the dialogue for Summing at each change in whatever parameter you
wish.

 

[6538]

Select grouping by Rows. Don't need summing or any calculation - just want
to group a section together as an outline. It was different in Excel 2003,
but doesn't seem to work in 2007. I'm thinking that the formatting isn't
correct for group/outline or something. Any clues?

Thanks